Home / 117,106.55-161,607.14-63,391.40

Finding the Fourth Proportional to 117,106.55, 161,607.14 and 63,391.40

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Solution

The fourth proportional to 117,106.55, 161,607.14 and 63,391.40 is: 87,480.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,106.55 : 161,607.14 = 63,391.40 : x
  2. Step 2: Convert to fraction form
    117,106.55/161,607.14 = 63,391.40/x
  3. Step 3: Cross multiply
    117,106.55x = 161,607.14 × 63,391.40
  4. Step 4: Simplify right side
    117,106.55x = 10,244,502,854.60
  5. Step 5: Solve for x
    x = 10,244,502,854.60/117,106.55
  6. Step 6: Final answer
    x = 87,480.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.